What the numbers say

The steepest single-year drop comes at year 1 (−39%). Mileage costs it 41%: the same car reads 100k–150k instead of Under 40k miles. Calculated from 20 listings.

4
Years priced
$29,500
2019 median
20
Listings

Cadillac CT6 value by year

FIG.01·Cadillac CT6 Value by Year
YearTrade-inMedianDealerListings
2019$14,899$29,500$59,9957
2018$12,499$17,995$23,4953
2017$12,900$16,995$21,8426
2016$12,990$17,500$26,0004
ROWS 4·SOURCE ForCar · Cadillac CT6

How the Cadillac CT6 depreciates

FIG.02·Cadillac CT6 Depreciation Curve — Median Value by Year
2019201820172016$29,500$17,995$16,995$17,500
RANGE $29,500 → $17,500·SOURCE ForCar · Cadillac CT6

The newest Cadillac CT6 has a median asking price of $29,500; a 3-year-older one runs about $17,500 — roughly 41% lost over 3 years (compare the typical depreciation curve by age).

The Cadillac CT6 market right now

FIG.04·Cadillac CT6 Market — Asking Price Range by Year
2016201720182019$17,500$16,995$17,995$29,500
RANGE $17,500 → $29,500·SOURCE ForCar · 53 listings
This is the median line. Pro plots all 53 Cadillac CT6 listings on this chart and flags every under-market deal.Upgrade to Pro →

Adjust your Cadillac CT6 value for mileage

Crossing 100k miles costs a Cadillac CT6 about 41% of its under-40k asking price:

FIG.05·Cadillac CT6 — Price by Mileage Band
01
Under 40k miles6 listings$27,000
02
40k–100k27 listings$21,990
03
100k–150k11 listings$15,995
04
Over 150k4 listings$13,945
TOP 4·UNIT median asking price·SOURCE ForCar · 48 listings

Trade-in, private-party & dealer price

Trade-in / low
$15k
Private-party
$30k
Dealer / high
$60k
FIG.06·Cadillac CT6 — Trade-in vs Private-Party vs Dealer
01
Trade-in — a dealer pays you10th percentile$14,899
02
Private-party — you sell itmedian · typical price$29,500
03
Dealer retail — a lot charges90th percentile$59,995
TOP 3·UNIT $ · 2019 Cadillac CT6·SOURCE ForCar · 7 listings

For a 2019 Cadillac CT6: a dealer trade-in offer is around $14,899, selling private-party nets about $29,500, and a lot asks near $59,995 — a $45,096 spread on the same car.

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More on the Cadillac CT6

Cadillac CT6 value FAQ

How much is a Cadillac CT6 worth?

It depends mostly on the model year: in our listings the median asking price runs from $16,995 to $29,500 across 4 model years. A 2019 is worth about $29,500, the median of 7 listings.

How much does mileage cut a Cadillac CT6's value?

Among CT6s from the last eight model years, those with under 40,000 miles ask a median $27,000, and those with over 150,000 miles ask $13,945; crossing 100,000 miles alone costs about 41%.

Cadillac CT6 values from 20 US listings, model years 2016–2019, rebuilt every 6 hours. These are asking prices, not sale prices. Last updated Nov 2026. — ForCar Reviewed by , founder of ForCar.
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